Comparative Analysis of Complexed Prostate Specific Antigen, Free Prostate Specific Antigen and Their Ratio in Detecting Prostate Cancer

Abstract

This study suggests complexed PSA is equivalent to total PSA for the early detection of prostate cancer. Percent free PSA outperforms complexed PSA and percent complexed PSA performed equivalently to percent free PSA in all total PSA ranges analyzed between 2.5 and 10 ng./ml.